Machine for cutting wire



2' Sheets-Sheet 1 (No Model.)

0. S. OHAFPEE. MACHINE FOR CUTTING WIRE.

No. 594,676; Patented NOV..30, 1897.

THE mums pawns c0. momma. wnsumm (No Model.) 2 Sheets-Sheet 2.

" O. S. GHAFFEE.

I MACHINE FOR CUTTING WIRE. No. 594,676. Patented Nov. 30, 189'7.

UNITED STATES PATENT @FFICE.

CHARLES S. CHAFFEE, OF DERBY, CONNECTICUT.

MACHIN E FOR CUTTING WIRE.

SPECIFICATION forming part of Letters Patent No. 594,676, dated November30, 1897.

Application filed January 14, 189'7. Serial No. 619,137. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES S. OHAFEEE, of Derby, in the county of NewHaven and State of Connecticut, have invented a new Improvement inMachines for Cutting and Punching Wire; and I do hereby declare thefollowing, when taken in connection with the accompanying drawings andthe letters of reference markedthereon, to be a full, clear, and exactdescription of the same, and which said drawings constitute part of thisspecification, and represent, in-

Figure 1, a front View of' a machine constructed in accordance with myinvention; Fig. 2, an end view of the same; Fig. 3, a perspective viewof the feed-plate detached; Fig. 4, an under side view of the cutter andpunches; Fig. 5, a top'view of two ends of the wire after the cuttingand punching operation; Fig. 6, a top View of the rear guideway; Fig. 7,a sectional view of the same.

This invention relates to an improvement in machines for cutting andpunching wires, and particularly wires which have been inclosed in paperor cloth wrappers and such as are used for dress-stays, the object ofthe invention being to regulate the length of wire fed, so that themachine will automatically out the wires to predetermined lengths, andtoso construct one of the feeding-rolls that by changing a plate securedto its face the feeding operation will be increased or diminished, so asto produce stays of diiferent lengths and without changing the materialparts of the machine.

Another object of my invention is to combine with such feeding mechanismcutters and a punch which will round the opposite ends of the said wiresand perforate the ends at the same operation; and it consists in theconstruction as hereinafter described, and particularly recited in theclaims.

The main portion of the frame of the machine consists of a base A anduprights B 0, extending from the sides of the base upward parallel witheach other. Mounted in these uprights, one above the other, in verticallines and parallel with each other, are two shafts, the lower one Dcarrying a feed-roll F at its outer end and the upper shaft E carrying afeed-roll G at its outer end, the peripheries of the two rolls beingslightly separated from each other. A segment H of the edge of one ofthe rolls, and preferably the upper one, is of longer radius than themain portion of the roll and so as to come in contact with the face ofthe other roll, the length of this enlargement corresponding to theshortest length of the wires to be out. On the shaft D, inside theupright B, is a gear-wheel I, meshing with a corresponding wheel J,mounted on the shaft E. Also mounted in the uprights is a driving-shaftK, carrying a gear L, meshing with the gear I, and adapted to be drivenby a pulley M, and so that the rotation of the driving-shaft K will beimparted to the shafts D and E to turn them in opposite directions.

'At one end of the frame is a bed M, above which is arranged a head N,in which is mounted a slide 0, vertically movable between guides P P. Atthe lower end of the slide is a cutter Q, having reversely-curvedcutting edges a b, and at each side of the cutter is a punch 0. Abovethe bed M is a stripper-plate d, through which the cutter and punchespass into suitable recesses in the bed. Extending from the bed into linewith the adjacent surfaces of the feed-rolls is a guideway R,corresponding to the shape of the wire to be cut, and extending beyondthe wheels on the opposite side and in line with said guideway is aguide R, supported by a downwardly-extending arm S, which is secured tothe outer face of the upright 13. Upon the face of the guide R issecured a spring T, having a finger T, adapted to bear downward upon thewire extending through the guide and tending to prevent'the accidentalwithdrawal of the wire. Mounted in the head N, upon a pivot e is a leverU, one end of which is connected to the slide 0 and the other extendingbeyond the feed-rolls F G and carrying a downwardly-dependin g arm V,which extends into the path of a stud XV, secured to the feedroll F, andso that as the feed-roll revolves the stud \V will lift the arm V, andhence the lever U, and so as to depress the slide 0. The end of thelever U is connected to the frame by a spring X, the tendency of whichisv to draw the free end of the lever downward. As before stated, thesegmental portion H corresponds in length to the length of the shortestwires to be out, and if a longer wire is desired I apply to the wheel Gat the end of the segmental portion II a block f, formed with sideflanges g, by which it may be secured to the sides of the wheel, and soas to vertically extend the length of the segmental portion H. Theseblocks vary in length according to the increased length of the staysrequired and maybe readily removed or one substituted for anotherwithoutdisarrangin g the machine.

The operation of the machine is as follows: The wire is fed through theguide R, between the rolls F G, through the guide R, and below thecutter-slide O, and during the time that the wheels F G are revolvingout of engagement with each other the arm V of the lever U will belifted, which depresses the slide 0, and hence the cutter Q and punchesc, which rounds and punches a hole in the rear end of the wire cut offand in the forward end of the wire about to be fed. After this punchingand cutting operation the continued movement of the machine brings thesegmental portion H into contact with the wire and clamps it betweensaid segmental portion and the feed-roll F and draws it through theguide R and forces it through the guide R below the punch and to adistance corresponding to the length of the segmental portion. After thesegmental portion has passed the feeding is stopped and the cutting andpunching operation before described again takes place, and thiscontinues automatically as long as wire is fed to the machine, thespring T preventing accidental withdrawal of the wire and holding it inreadiness to be engaged by the segmental portion at the next revolution.If longer wires are desired, a longer block f may be applied to thefeed-roll, and so as to increase the length of the segmental portion,and hence increase the length of the wire fed. The uprights B and O areof sufficient width to permit the shaft K and its gear-wheel L to bearranged on the opposite side of the feed-rolls, if desired, when thepower is derived from the opposite side of the shaft, and so that bysimply shifting the driving-shaft the rotation in the proper directionmay be secured without twisting the driving-belts.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-- 1. In a machine for cutting andpunching wire, the combination with two rolls having their peripheriesadjacent to but separated from each other, and means for driving them inopposite directions, one of said feed-rolls formed with an integralsegmental feedingface projecting beyond the main portion of the roll, ofa combined cutter comprising two reversely-curved cutters and a punchadjacent to each cutter whereby both ends of the wire are rounded andperforated, a guideway extending from said rolls to the cutting andpunching mechanism, and a lever connected with the said cutter and punchand adapted to be lifted by a stud on the side of one of saidfeed-rolls, substantially as described.

2. In a machine for cutting and punching wire, the combination with tworolls having their peripheries adjacent to but separated from eachother, and means for driving them in opposite directions, one of saidfeed-rolls formed with an integral segmental feedingface projectingbeyond the main portion of the roll, of a combined cutter comprising tworeversely-curved cutters and a punch adjacent to each cutter wherebyboth ends of the wire are rounded and perforated, a guideway extendingfrom said rolls to the cutting and punching mechanism, and from thefeedrolls toward the source of supply, a holdbaek on said guideway, andalcver connected with the said cutter and punch, and adapted to belifted by a stud on the side of one of said feedrolls, substantially asdescribed.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

CHARLES S. CHAFFEE.

IVitnesses:

WM. S. Bnowivn, S. H. Lnssnv.

